1243452 has 48 divisors (see below), whose sum is σ = 3370752. Its totient is φ = 349440.

The previous prime is 1243439. The next prime is 1243471. The reversal of 1243452 is 2543421.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9427 + ... + 9557.

It is an arithmetic number, because the mean of its divisors is an integer number (70224).

2^1243452 is an apocalyptic number.

1243452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1243452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1685376).

1243452 is an abundant number, since it is smaller than the sum of its proper divisors (2127300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1243452 is a wasteful number, since it uses less digits than its factorization.

1243452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258 (or 256 counting only the distinct ones).

The product of its digits is 960, while the sum is 21.

The square root of 1243452 is about 1115.1017890758. The cubic root of 1243452 is about 107.5333085895.

Adding to 1243452 its reverse (2543421), we get a palindrome (3786873).

The spelling of 1243452 in words is "one million, two hundred forty-three thousand, four hundred fifty-two".